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Measurement of System Peformance

lyf sci
Genius 3720 points

Hi Experts,

Is there any tools and provision available in AM335x SDK6/7 to measure the system performance like CPU idle time, interrupts handled per second so that while adding the new features the metrics for various data can be obtained.

  • 0
    TI__Intellectual 1195 points

    cpuidle stats (if enabled) are available under /sys/devices/system/cpu/cpu0/cpuidle. For example,

    cat /sys/devices/system/cpu/cpu0/cpuidle/*/*

    Check the time and usage nodes.

    If ltp-ddt is installed (i.e. check if /opt/ltp directory exists), you can run cyclictest to get an idea of interrupts service time, for example:

    cd /opt/ltp; ./runltp -P am335x-evm -f ddt/realtime_cyclictest_no_load

    Finally, /proc/interrupts will show the number of system interrupts and their source.

    Regards,

    Carlos